{"id":1464,"date":"2017-06-15T12:25:30","date_gmt":"2017-06-15T12:25:30","guid":{"rendered":"http:\/\/www.battaussie.com\/blog\/?p=1464"},"modified":"2017-06-15T12:25:30","modified_gmt":"2017-06-15T12:25:30","slug":"double-laptop-battery-life","status":"publish","type":"post","link":"https:\/\/www.battaussie.com\/blog\/double-laptop-battery-life.htm","title":{"rendered":"How To Double Laptop Battery Life"},"content":{"rendered":"

Anyone who uses a laptop on a plane likes a battery that can fly across the United states. Now Intel researchers believe they can double the battery life of a laptop without changing the battery itself. Instead, they will optimize system wide power management, including operating systems, screens, mice, motherboards, chips, and devices connected to the USB ports.<\/p>\n

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To be sure, manufacturers and researchers have been exploring piecemeal ways to make portable computers more energy efficient. Operating systems are designed to deploy power-saving screen savers and put an entire system to sleep if its owner hasn\u2019t used it after a while. And Intel\u2019s forthcoming Atom, a microprocessor for mobile Internet devices, can be put to sleep at up to six different levels, depending on the types of tasks that it needs to do.<\/p>\n

But the problem with these approaches is that they\u2019re not coordinated across the entire device. Intel\u2019s prototype power-management system is aware of the power that\u2019s used by all parts of a laptop, as well as the power requirements of a person\u2019s activity, and it shuts down operations accordingly, says Greg Allison, business development manager. The project, called advanced platform power management, was demonstrated on Wednesday at an Intel event in Mountain View, CA.<\/p>\n

Allison gives this example: today, when a person reads a static e-mail, the screen still refreshes 60 times a second, and peripherals such as the keyboard, mouse, and USB devices drain Hp pavilion dv4 laptop battery<\/a><\/strong> power while awaiting instructions. \u201cWe\u2019re burning energy even when we don\u2019t need to,\u201d Allison says. In this situation, Intel\u2019s system would save power by essentially taking a snapshot of the screen that a person is reading and saving it to a buffer memory. So instead of refreshing, the screen would maintain an image until a person tapped a button on the keyboard or moved the mouse (the keyboard and mouse would also stay asleep until activated).<\/p>\n

All the while, the operating system will be monitoring use of other applications, restricting operations to those that aren\u2019t being actively used. And if there are any devices plugged into a USB port, such as a flash-memory stick, the system would put them to sleep. At the same time, explains Allison, energy-monitoring circuits on Intel chips will put unnecessary parts of the microprocessor to sleep. It takes 50 milliseconds for the entire system to spring to life, he says, a length of time imperceptible to the user.<\/p>\n

Intel isn\u2019t the first to think of the idea of integrating power-saving technology throughout a device. One Laptop per Child (OLPC), the nonprofit that builds inexpensive, rugged laptops meant for children in the developing world, set the standard with a gadget that consumes one-tenth of the power of a conventional laptop. Granted, OLPC\u2019s laptop doesn\u2019t have the capabilities of consumer machines, but it does show what is technically achievable.<\/p>\n

There are definitely advantages to this systemic approach, says Seth Sanders, a professor of electrical engineering and computer science at the University of California, Berkeley. \u201cComprehensively looking through the system at all of the different pieces that are cycling unnecessarily provides an opportunity [for power savings],\u201d he says.<\/p>\n

Allison says that the company is already talking with operating-system vendors to explore what it would take to integrate this approach into software. And as a major contributor to the new USB 3.0 standards, Intel will have some say in how much power forthcoming USB devices will use. In addition, Allison says, the company is trying to secure deals with display and hardware vendors. \u201cThis won\u2019t happen in the next three years,\u201d he says. But he suspects that pieces of the new power-management system will find their way into laptops within five years.<\/p>\n","protected":false},"excerpt":{"rendered":"

Anyone who uses a laptop on a plane likes a battery that can fly across the United states. Now Intel researchers believe they can double the battery life of a laptop without changing the battery itself. Instead, they will optimize system wide power management, including operating systems, screens, mice, motherboards, chips, and devices connected to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3,4],"tags":[780,779],"class_list":["post-1464","post","type-post","status-publish","format-standard","hentry","category-battery-knowledge-base","category-how-to","category-laptop-batteries-tips","tag-hp-593554-001-notebook-battery","tag-hp-pavilion-dv4-laptop-battery"],"_links":{"self":[{"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/posts\/1464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/comments?post=1464"}],"version-history":[{"count":1,"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/posts\/1464\/revisions"}],"predecessor-version":[{"id":1466,"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/posts\/1464\/revisions\/1466"}],"wp:attachment":[{"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/media?parent=1464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/categories?post=1464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.battaussie.com\/blog\/wp-json\/wp\/v2\/tags?post=1464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}